/Engine/Source/Runtime/Interchange/Core/Public/InterchangePipelineBase.h
ScriptedExecutePipeline, is call after the translation and before we parse the graph to call the factory. This is where factory node should be created by the pipeline. Each factory node represent an unreal asset create that will be create by an interchange factory.
void ScriptedExecutePipeline ( [UInterchangeBaseNodeContainer](API\Runtime\InterchangeCore\Nodes\UInterchangeBaseNodeContainer) * BaseNodeContainer, const [TArray](API\Runtime\Core\Containers\TArray)< [UInterchangeSourceData](API\Runtime\InterchangeCore\UInterchangeSourceData) * > & SourceDatas )